<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .container {
            width: 300px;
            height: 400px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .column:nth-child(1) {
            width: 50%;
        }

        .column:nth-child(2) {
            width: 20%;
        }

        .column:nth-child(3) {
            width: 30%;
        }

        .column {
            height: 400px;
            border-right: 1px solid blue;
            text-align: center;
        }

        .column:last-child {
            border-right: none;
        }


    </style>
</head>
<body>
<div class="container">
    <div class="column">111</div>
    <div class="column">222</div>
    <div class="column">333</div>
</div>
</body>
</html>
